Floor treatment device



FIG. 1 is a top plan view of a floor treatment device;

FIG. 2 is a perspective view of the design of FIG. 1;

FIG. 3 is a left elevation view of the design shown in FIG. 1;

FIG. 4 is a right elevation view of the design shown in FIG. 1;

FIG. 5 is a front elevation view of the design shown in FIG. 1; and,

FIG. 6 is a rear elevation view of the design shown in FIG. 1.

The broken lines showing of the floor treatment device is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a floor treatment device, as shown and described. 